基于夜间灯光数据的福建省城镇扩展研究

A Study on Urban Expansion in Fujian Province Based on Nighttime Light Data

本研究基于福建省1992—2013年的夜间灯光数据,结合主要社会经济数据,通过多种空间分析方法,分析福建省城镇时空扩展路径及其动力机制。结果表明:(1)1992—2013年福建省城镇时空扩展表现为以福厦泉为核心的中心聚集扩展模式,而宁德—三明—龙岩之间的“三角地带”成为城镇空间扩展的冷点区;(2)城镇空间扩展虽已出现分散势头,但向心聚集力仍很强;(3)消费力是福建省城镇时空扩展的主要驱动因子,而决策力、外推力和内驱力对城镇空间扩展的作用呈顺次递减趋势。

Based on the nighttime light data of Fujian province from 1992 to 2013,combined with the main socio-economic data,this paper study the space-time expansion path and its dynamic mechanism by calculating the expansion intensity index,the spatial correlation model and the multi-dimensional driving force model.The results show that:(1)the temporal and spatial expansion of cities and towns in Fujian province from 1992 to 2013 showed a central agglomeration expansion model with Fuzhou,Xiamen and Quanzhou as the core,and Ningde,Sanming and Longyan became cold spots for urban spatial expansion;(2)there has been a momentum of dispersion,but the centripetal gathering force is still very strong;(3)the power mechanism of urban space-time expansion is characterized by consumption power as the main driving factor,and the influence of decision-making power,external thrust and internal driving force on urban spatial expansion shows a sequential decreasing trend.